Taiwan Semiconductor 1.5SMC series Zener TVS diode, 1.5SMC33CA V7G, bidirectional, 1500W peak pulse power, 28.2V reverse standoff, 45.7V clamp, DO-214AB (SMC) surface mount.
| Parameter | Value |
|---|---|
| Type | Zener |
| Series | 1.5SMC |
| Mounting | Surface Mount |
| Voltage - breakdown | 31.4V |
| Voltage - clamping (Max) @ ipp | 45.7V |
| Voltage - reverse standoff | 28.2V |
| Current - peak pulse (10/1000μs) | 34A |
| Power - peak pulse | 1500W (1.5kW) |
| Power line protection | No |
| Operating temperature | -55°C ~ 150°C (TJ) |
| Package | Tape & Reel (TR) |
| Applications | Telecom |
| Case | DO-214AB, SMC |
| Bidirectional channels | 1 |
The 1.5SMC33CA V7G: Rated for 1500 W peak pulse power under the standard 10/1000 µs exponential waveform — this is the industry benchmark for telecom surge testing per ITU-T K.20/K.21 and GR-1089. The 34 A peak pulse current is the corresponding current the diode must sink at the clamping voltage; a lower-impedance surge source will drive more current, so the designer must verify the source impedance keeps the diode within its power rating.
It uses the DO-214AB (SMC) surface-mount package. This is a standard footprint for the 1.5SMC series, compatible with reflow soldering processes.